Results 61 to 70 of about 4,672,430 (332)

Sensitive detection of nanomechanical motion using piezoresistive signal downmixing [PDF]

Applied Physics Letters, 2005
We have developed a method of measuring rf-range resonance properties of nanoelectromechanical systems (NEMS) with integrated piezoresistive strain detectors serving as signal downmixers. The technique takes advantage of the high strain sensitivity of semiconductor-based piezoresistors, while overcoming the problem of rf signal attenuation due to a ...
Bargatin, I., Myers, E. B., Arlett, J., Gudlewski, B., Roukes, M. L.   +4 more
openaire   +2 more sources

Anomalous Pressure‐Temperature Ultrahigh Sensitivities in Atomically Engineered Carbonitride MXenes for Multifunctional Wearable Human–Machine Interfaces: Joint Computational–Experimental Elucidations

Advanced Functional Materials, EarlyView.
Atomically engineered layered 2D Ti3CNTz carbonitride MXene exhibits ultrahigh heat and pressure sensitivity, enabling dual‐mode sensors with 300%–400% performance enhancement and durability for real‐time health‐monitoring interface devices. Precise nitrogen incorporation (e.g., Ti3C1.8N0.2Tz) boosts conductivity, enhancing temperature response, while ...
Debananda Mohapatra, Ju‐Hyoung Han, Hyun Jin Kang, Jeong Eun Byun, Seonghun Lee, Sanghyuk Lee, Yeseul Son, Jaeeun Park, Tae Joo Shin, Youngho Kang, Jung Woo Lee, Soon‐Yong Kwon, Soo‐Hyun Kim   +12 more
wiley   +1 more source

High Quality Factor Silicon Cantilever Driven by PZT Actuator for Resonant Based Mass Detection [PDF]

, 2008
A high quality factor (Q-factor) piezoelectric lead zirconat titanate (PZT) actuated single crystal silicon cantilever was proposed in this paper for resonant based ultra-sensitive mass detection.
Ikehara, T., Itoh, Toshihiro, Lu, Jian, Maeda, Ryutaro, Mihara, Takashi, Zhang, Yi   +5 more
core   +1 more source

Sensorized Engineered Tissues with Built‐in Thermoregulation and Nutrient Supply

Advanced Functional Materials, EarlyView.
This work introduces a granular hydrogel‐based tissue engineering platform that includes a closed‐loop temperature control to maintain 37°C and sustainably releases nutrients, thereby enabling cells to retain a high viability even if stored at room temperature for up to 24 h.
Antonia Georgopoulou, Jakob Schreiner, Miriam Filippi, Aiste Balciunaite, Robert K. Katzschmann, Esther Amstad   +5 more
wiley   +1 more source

Junctionless Silicon Nanowire Resonator

IEEE Journal of the Electron Devices Society, 2014
The development of nanoelectromechanical systems (NEMS) is likely to open up a broad spectrum of applications in science and technology. In this paper, we demonstrate a novel double-transduction principle for silicon nanowire resonators, which exploits ...
Sebastian T. Bartsch, Maren Arp, Adrian M. Ionescu   +2 more
doaj   +1 more source

Ultrasensitive Hierarchical Piezoresistive Pressure Sensor for Wide‐Range Pressure Detection

Advanced Intelligent Systems, 2021
Pressure sensitivity and wide range are two crucial features of flexible electromechanical sensors for applications in the next‐generation of intelligent electronics, such as wearable healthcare monitors and soft human–machine interfaces.
Jing Li, Tianyu Wu, Huan Jiang, Yanyu Chen, Qibiao Yang   +4 more
semanticscholar   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Optimizing the piezoresistive design on the microcantilever for enhancing stress sensing and temperature effects

AIP Advances
This paper addresses the issue of volatile organic compounds (VOCs), hazardous materials commonly present in paints, perfumes, petroleum and oil refineries, and plastic products, which can lead to health hazards.
Vasagiri Suresh, Rajesh Kumar Burra
doaj   +1 more source

Flexible Ecoflex^®/Graphene Nanoplatelet Foams for Highly Sensitive Low-Pressure Sensors

Sensors, 2020
The high demand for multifunctional devices for smart clothing applications, human motion detection, soft robotics, and artificial electronic skins has encouraged researchers to develop new high-performance flexible sensors.
Marco Fortunato, Irene Bellagamba, Alessio Tamburrano, Maria Sabrina Sarto   +3 more
doaj   +1 more source

Heterogeneous Multi-Material Flexible Piezoresistive Sensor with High Sensitivity and Wide Measurement Range

Micromachines, 2023
Flexible piezoresistive sensors (FPSs) have the advantages of compact structure, convenient signal acquisition and fast dynamic response; they are widely used in motion detection, wearable electronic devices and electronic skins.
Tingting Yu, Yebo Tao, Yali Wu, Dongguang Zhang, Jiayi Yang, Gang Ge   +5 more
doaj   +1 more source